Ions

Front

How many valence electrons does magnesium have?

Back

2

Front

Valence electrons are:

Back

Electrons farthest away from the nucleus

Front

Cations are...

Back

Positive

Front

Anions are...

Back

Negative

Front

When an atom loses a valence electron, it becomes a _____________ ion.

Back

positive

Front

What is the charge of a cation?

Back

Positive

Front

What is the charge of an anion?

Back

Negative

Front

Define valence electrons.

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What happens to an atom when it gains an electron?

Back

It becomes a negative ion (anion).

Front

What happens to an atom when it loses an electron?

Back

It becomes a positive ion (cation).